Japanese electric utility Electric Power Development Co Ltd (<a href="https://quote.jpx.co.jp/jpx/template/quote.cgi?F=tmp/e_stock_detail&MKTN=T&QCODE=9513" target="_blank">TYO:9513</a>), known as J-POWER, has put into commercial operation its 24.75-MW New Nikaho Kogen wind farm in Akita prefecture following the completion of renovation works.